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aschwarz
2023-04-26 13:17:21 +02:00
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97
chart/samples/scales/logarithmic/line-logarithmic.html Executable file
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<!doctype html>
<html>
<head>
<title>Logarithmic Line Chart</title>
<script src="../../../Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width:75%;">
<canvas id="canvas"></canvas>
</div>
<button id="randomizeData">Randomize Data</button>
<script>
var randomScalingFactor = function() {
return Math.ceil(Math.random() * 10.0) * Math.pow(10, Math.ceil(Math.random() * 5));
};
var config = {
type: 'line',
data: {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
label: "My First dataset",
backgroundColor: window.chartColors.red,
borderColor: window.chartColors.red,
fill: false,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}, {
label: "My Second dataset",
backgroundColor: window.chartColors.blue,
borderColor: window.chartColors.blue,
fill: false,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}]
},
options: {
responsive: true,
title:{
display:true,
text:'Chart.js Line Chart - Logarithmic'
},
scales: {
xAxes: [{
display: true,
}],
yAxes: [{
display: true,
type: 'logarithmic',
}]
}
}
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, config);
};
document.getElementById('randomizeData').addEventListener('click', function() {
config.data.datasets.forEach(function(dataset) {
dataset.data = dataset.data.map(function() {
return randomScalingFactor();
});
});
window.myLine.update();
});
</script>
</body>
</html>

171
chart/samples/scales/logarithmic/scatter-logX.html Executable file
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<!doctype html>
<html>
<head>
<title>Scatter Chart</title>
<script src="../../../Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width:75%">
<canvas id="canvas"></canvas>
</div>
<script>
var color = Chart.helpers.color;
var scatterChartData = {
datasets: [{
borderColor: window.chartColors.red,
backgroundColor: color(window.chartColors.red).alpha(0.5).rgbString(),
label: "V(node2)",
data: [{
x: 1,
y: -1.711e-2,
}, {
x: 1.26,
y: -2.708e-2,
}, {
x: 1.58,
y: -4.285e-2,
}, {
x: 2.0,
y: -6.772e-2,
}, {
x: 2.51,
y: -1.068e-1,
}, {
x: 3.16,
y: -1.681e-1,
}, {
x: 3.98,
y: -2.635e-1,
}, {
x: 5.01,
y: -4.106e-1,
}, {
x: 6.31,
y: -6.339e-1,
}, {
x: 7.94,
y: -9.659e-1,
}, {
x: 10.00,
y: -1.445,
}, {
x: 12.6,
y: -2.110,
}, {
x: 15.8,
y: -2.992,
}, {
x: 20.0,
y: -4.102,
}, {
x: 25.1,
y: -5.429,
}, {
x: 31.6,
y: -6.944,
}, {
x: 39.8,
y: -8.607,
}, {
x: 50.1,
y: -1.038e1,
}, {
x: 63.1,
y: -1.223e1,
}, {
x: 79.4,
y: -1.413e1,
}, {
x: 100.00,
y: -1.607e1,
}, {
x: 126,
y: -1.803e1,
}, {
x: 158,
y: -2e1,
}, {
x: 200,
y: -2.199e1,
}, {
x: 251,
y: -2.398e1,
}, {
x: 316,
y: -2.597e1,
}, {
x: 398,
y: -2.797e1,
}, {
x: 501,
y: -2.996e1,
}, {
x: 631,
y: -3.196e1,
}, {
x: 794,
y: -3.396e1,
}, {
x: 1000,
y: -3.596e1,
},]
}]
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myScatter = Chart.Scatter(ctx, {
data: scatterChartData,
options: {
title: {
display: true,
text: 'Chart.js Scatter Chart - Logarithmic X-Axis'
},
scales: {
xAxes: [{
type: 'logarithmic',
position: 'bottom',
ticks: {
userCallback: function(tick) {
var remain = tick / (Math.pow(10, Math.floor(Chart.helpers.log10(tick))));
if (remain === 1 || remain === 2 || remain === 5) {
return tick.toString() + "Hz";
}
return '';
},
},
scaleLabel: {
labelString: 'Frequency',
display: true,
}
}],
yAxes: [{
type: 'linear',
ticks: {
userCallback: function(tick) {
return tick.toString() + "dB";
}
},
scaleLabel: {
labelString: 'Voltage',
display: true
}
}]
}
}
});
};
</script>
</body>
</html>